Home / 8,319,787.40-12,479,681.10-7,395,998.60

Finding the Fourth Proportional to 8,319,787.40, 12,479,681.10 and 7,395,998.60

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Solution

The fourth proportional to 8,319,787.40, 12,479,681.10 and 7,395,998.60 is: 11,093,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319,787.40 : 12,479,681.10 = 7,395,998.60 : x
  2. Step 2: Convert to fraction form
    8,319,787.40/12,479,681.10 = 7,395,998.60/x
  3. Step 3: Cross multiply
    8,319,787.40x = 12,479,681.10 × 7,395,998.60
  4. Step 4: Simplify right side
    8,319,787.40x = 92,299,703,944,046.45
  5. Step 5: Solve for x
    x = 92,299,703,944,046.45/8,319,787.40
  6. Step 6: Final answer
    x = 11,093,997.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.